/*===========================================================================
  Copyright (C) 2012 by the Okapi Framework contributors
-----------------------------------------------------------------------------
  This library is free software; you can redistribute it and/or modify it 
  under the terms of the GNU Lesser General Public License as published by 
  the Free Software Foundation; either version 2.1 of the License, or (at 
  your option) any later version.

  This library is distributed in the hope that it will be useful, but 
  WITHOUT ANY WARRANTY; without even the implied warranty of 
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 
  General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License 
  along with this library; if not, write to the Free Software Foundation, 
  Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

  See also the full LGPL text here: http://www.gnu.org/copyleft/lesser.html
===========================================================================*/

package net.sf.okapi.lib.xliff2.core;

/**
 * Represents the types of direction for the bi-directionality information.
 */
public enum Directionality {

	/**
	 * Automatic.
	 */
	AUTO,
	
	/**
	 * Left-to-Right.
	 */
	LTR,
	
	/**
	 * Right-to-Left.
	 */
	RTL,
	
	/**
	 * Inherited from the proper parent.
	 */
	INHERITED;
	
	public String getPrefix () {
		switch ( this ) {
		case AUTO:
			return "a";
		case LTR:
			return "l";
		case RTL:
			return "r";
		default:
			return "i";
		}
	}

	@Override
	public String toString () {
		switch ( this ) {
		case AUTO:
			return "auto";
		case LTR:
			return "ltr";
		case RTL:
			return "rtl";
		case INHERITED:
		default:
			return "NOT ALLOWED";
		}
	}
}
